Shortcut to undo/delete a recently expanded snippet in LuaSnip

[kylefhartzenberg]

Say a user invokes a snippet, but realises that the snippet is incorrect/undesired. Is there the ability to clear the most recently expanded snippet via the LuaSnip API such that this can then be bound to a key-mapping in Neovim? For example (psuedo-code):

vim.keymap.set({'i', 's'}, 'uu', '<cmd>lua require("luasnip").undo_expansion()<CR>')

The documentation doesn't seem to mention anything relating to undoing or deleting a recently expanded snippet. The closest discussion I could find in the repository was #116 (comment) which mentions a function that "reverses the expansion of a snippet and puts the trigger-text back, mapping that to a key seems pretty ergonomic". This is basically what I am after (preferably with the option to not put the trigger-text back as well, as in some cases, one wants to remove the snippet (and trigger) because they have changed their mind about what needs to be typed/inserted).

[L3MON4D3]

#797!
I haven't gotten to implementing it yet, but I'll do so, it seems desired :D

[kylefhartzenberg]

Thank you. I actually forgot that I went down the rabbit hole of #797, #830 and #959 and had set-up <C-o>u following #830 (comment), but, as mentioned therein, the undo point is set at the beginning of a snippet-expansion-bonanza which means that one could be typing some TeX commands (as an example) and be 5+ snippets in and it'll undo it all. If I get some time, I'll play around with trying to implement the steps you listed in #797 (comment). Appreciate the help and your work!